| 单词 | 试纸 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔LOT〕The pregnancy test is commonly available in supermarkets and drugstores. 验孕试纸在超级市场和药房里普遍有售。朗文写作活用〔contact〕Litmus paper turns red on contact with an acid.石蕊试纸遇酸度会变红美国传统〔litmus paper〕An unsized white paper impregnated with litmus and used as a pH or acid-base indicator.石蕊试纸：未定尺寸并浸满石蕊的白纸，可用作Ph值或酸－碱显示剂美国传统〔litmus test〕A test for chemical acidity or basicity using litmus paper.石蕊色质测试：用石蕊试纸对化学酸、碱性所作的测试美国传统〔presence〕Litmus paper turns red in the presence of an acid.石蕊试纸遇到酸就变红。牛津高阶〔test paper〕Paper saturated with a reagent, such as litmus, used in making chemical tests.试纸：浸有化学试剂的纸，如石蕊，用于化学试验美国传统〔turmeric paper〕Paper saturated with turmeric and used to detect the presence of alkalis, which turn the paper brown, or boric acid, which turns it red-brown.姜黄试纸：一种用姜黄抽出液浸渍过的纸，用以测试碱性物质时试纸变成棕褐色，用来测试硼酸时，试纸变成红褐色美国传统The litmus paper will turn red in an acid and blue in an alkali.石蕊试纸遇酸变红，遇碱变蓝。剑桥国际 |
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